I am saying that it's very doubtful. No 155 mm round traveled that far from where 155s are stored/laying. ...your way of blaming the USA or Europe for the Nord-Ost BS? I also doubt your credibility after your description of "expert" to describe yourself, not to mention your lack of knowledge on the general main purpose of SF.
Let's focus on your falsehood. You tell us how a 155 mm round got all the way to the Nord-Ost Theatre. The only such round that the Russians had was brand new and for sale but hadn't gone anywhere, yet (no way it went to Chechnya and back). The only likely way that such a round wouldn't been put in that theatre would be an intentional implication of a NATO country by officials there.
The only such round that would have been available in abundance (if any) to the Chechens (if they had such an artie unit in the Russian Army) would have been the 152 mm.